Chaleb E. Calandra, 19, only obtained a total of $70 before the gig was up, according to charging documents. He is alleged to have altered receipts from six customers on six occasions during the month of January.

Police began investigating on Jan. 23 when a customer called the police to say her purchase total was about $25, but she was charged about $50. She said she had given the driver, whom she identified as Calandra, a cash tip and had not authorized additional tip to her credit card.

A detective contacted Bullwinkle’s bookkeeper, who reviewed Calandra’s credit card receipts and discovered he had altered five other receipts, according to an affidavit.

In an interview with police, Calandra admitted to the crime and said “it was just something stupid that he had done,” the affidavit states.

He was charged with six counts of second-degree forgery for each receipt that was altered. That’s a class “C” felony that can be punishable by up to five years in prison and a $50,000 fine. He was also charged with one count of misdemeanor theft for stealing property worth more than $50 but less than $500.

Additionally, Calandra was charged with two counts of violating conditions of release since he was previously released on his own recognizance in two other criminal cases that are still pending.

One case is for felony assault — Calandra is one of the three teenagers accused of throwing rocks at passing vehicles last summer. Prosecutors say one of the rocks shattered a vehicle’s window and severely injured an unsuspecting 6-year-old boy in the backseat. That case is scheduled for trial next month, although pretrial litigation is still ongoing and could delay its start.

The other pending case is from September 2012 for misdemeanor theft and criminal trespass.

On Tuesday, Calandra appeared in court to answer to the new forgery charges, and court records show he pleaded not guilty. Juneau District Court Judge Keith Levy appointed the Public Defender Agency to represent him. He is next scheduled to appear in court next Friday for a preliminary hearing.

He is currently in custody at Lemon Creek Correctional Center on $5,000 bail.